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ANTI RADIATION BUILDING DESIGN: LOCAL SAND TYPE ANALYSIS TO GET CONCRETE X-RADIATION RESISTANT X-RAY Muhammad Fakhrurreza; Fisnandya Meita Astari
Jurnal Imejing Diagnostik (JImeD) Vol 5, No 1: January 2019
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v5i1.4001

Abstract

Background : There are three ways to protect yourself from the danger of radiation, namely by regulating the length of irradiation (the effect of time), the use of anti-radiation material (shielding), and adjusting the distance from the radiation source (distance). In order to be safe in carrying out x-ray irradiation, patients and operators must take three steps so that radiation hazards can be minimized (Nunung, 2004). One way to check the danger of external radiation is to use a radiation barrier. This method is generally preferred, because it creates safe working conditions. Besides that the time and distance factors can be monitored continuously at the time of work, so that radiation workers can be guaranteed safety.Methods: This research is quantitative research with an experimental approach. The method of data collection in this study is observation, direct experiments and documentation. The types of sand to be used in this study are south beach sand, opaque sand, progo sand, white mountain sand and volcanic sand.Result :  Concrete using sand material from South Beach has the lowest HVL value of 0.8644cm. Conclusion :The HVL value possessed by concrete with South Beach sand material is most effective in resisting x-ray radiation.
Community Economic Improvement Through Processing Cassava Into Mocaf Flour Widya Mufida; Muhammad Fakhrurreza; Fisnandya Meita Astari; Asih Puji Utami; Ahmad Faesol
Prosiding University Research Colloquium Proceeding of The 11th University Research Colloquium 2020: Bidang Pengabdian Masyarakat
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (823.734 KB)

Abstract

Singkong yang memiliki nama latin Manihot Esculennta merupakantumbuhan jenis umbi akar atau akar pohon yang panjang fisik ratarata-rata bergaris tengah 2-3 cm dan panjang 50-8080 cm, tergantung darijenis s singkong yang ditanam. Dalam industri makanan, pengolahansingkong dapat digolongkan menjadi tiga yaitu hasil fermentasisingkong, singkong yang dikeringkan, dan tepung singkong atautepung tapiokatapioka. Di Yogyakartagyakarta terdapat suatu dusun yang memilikilahan perpertaniantanian singkong yang luas yaitu Dusun Muntuk. DusunMuntuk merupakan dusun yang sebagian besar penduduknya bekerjasebagai petani singkong, dan hasil panen para petani singkongsebagian digunakan untuk p pakanakan ternak pada musim panas dansebagian dijual dengdengan harga yang rendah. Potensiotensi budidaya danpengolahan singkong di desa Muntuk sangat besar dan hingga kinibelum dimanfaatkan secara maksimamaksimal. Melaluielalui program PengabdianMasyarakat di Dusun Muntuk dapat memberdayakan masyarakatdengan memanfaatkan hasil pepertanianrtanian berupa singkong menjadisebuah produk pangan yang bernilai jual tinggi yaitu MocafMocaf.
Pengaruh Banyaknya Radiasi dan Perubahan Energi Sinar-X terhadap Peningkatan Pembentukan Radikal Bebas pada Air Muhammad Fakhrurreza; Puput Khusniatul Mujidah
JHeS (Journal of Health Studies) Vol 2, No 1: Maret 2018
Publisher : Universitas 'Aisyiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (182.171 KB) | DOI: 10.31101/jhes.432

Abstract

The method used in the research was quantitative that was experimenting on water (H2O), which was subjected to x-ray radiation with tube voltage variation and calculating the level of peroxide (H2O2) in water that has been exposed to radiation. The study was conducted by irradiating one liter of water added with five milliliters of KMnO4 and one milliliter of H2SO4 as a catalyst with tube voltage variation of 40 kV, 60 kV and 80 kV with 200 mSec and 400 mA of 10 irradiation times. The analysis was performed using a spectrometer. The results find that the more radiation, the higher the free radicals are formed. While the higher the x-ray energy, the fewer free radicals are formed.
PROSEDUR PEMERIKSAAN RADIOGRAFI BIPOLAR URETROCYSTOGRAFI DENGAN KLINIS STRIKTUR URETRA DI RSI SULTAN AGUNG SEMARANG Yossi Pratama; Ari Anggraeni; Muhammad Fakhrurreza
HEALTHY : Jurnal Inovasi Riset Ilmu Kesehatan Vol. 5 No. 4 (2026)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/healthy.v5i4.14750

Abstract

ABSTRACT Urethral stricture is a narrowing of the urethral lumen that can cause urinary problems, requiring bipolar urethrocystography to evaluate the location and length of the urethral narrowing. This study aimed to determine the examination procedure and the reasons for using 100 ml of contrast media in the urinary bladder and 30 ml in the urethra during bipolar urethrocystography in a case of urethral stricture at RSI Sultan Agung Semarang. This qualitative study was conducted at the Radiology Installation of RSI Sultan Agung Semarang from February to June 2026. The research subjects consisted of three radiographers and one radiologist, while the research object was the bipolar urethrocystography examination procedure for clinical urethral stricture. Data were collected through observation, interviews, and documentation, then analyzed narratively and compared with relevant theories to draw conclusions. The results showed that the examination was performed without special preparation because the patient had a cystostomy catheter in place. The examination used a combination of retrograde and antegrade techniques with a plain AP pelvis projection followed by post-contrast imaging using an RPO pelvis projection. The contrast media consisted of water-soluble iodine mixed with sterile water, with a volume of approximately 30 ml for urethrography and 100 ml for cystography. The radiographic results clearly demonstrated the urethra, urinary bladder, and location of the urethral narrowing in the posterior urethra, thereby supporting the evaluation of urethral stricture. In certain cases, additional projection variations may be considered to support a more comprehensive evaluation of the urethral anatomy and abnormalities. ABSTRAK Striktur uretra merupakan penyempitan pada lumen uretra yang menyebabkan gangguan berkemih, sehingga diperlukan pemeriksaan bipolar uretrocystografi untuk mengevaluasi lokasi dan panjang penyempitan uretra. Penelitian ini bertujuan untuk mengetahui prosedur pemeriksaan serta alasan digunakannya media kontras 100 ml pada vesica urinaria dan 30 ml pada uretra pada pemeriksaan radiografi bipolar uretrocystografi dengan klinis striktur uretra di RSI Sultan Agung Semarang. Penelitian ini menggunakan metode kualitatif dan dilakukan di Instalasi Radiologi RSI Sultan Agung Semarang pada bulan Februari 2026 hingga Juni 2026. Subjek penelitian terdiri atas tiga radiografer dan satu dokter spesialis radiologi, sedangkan objek penelitian adalah prosedur pemeriksaan bipolar uretrocystografi dengan klinis striktur uretra. Data dikumpulkan melalui observasi, wawancara, dan dokumentasi, kemudian dianalisis secara naratif dan dibandingkan dengan teori yang relevan untuk ditarik kesimpulan. Hasil penelitian menunjukkan bahwa pemeriksaan dilakukan tanpa persiapan khusus karena pasien telah terpasang kateter cystotomi. Pemeriksaan menggunakan kombinasi teknik retrograde dan antegrade dengan proyeksi plain foto AP pelvis dan post kontras menggunakan proyeksi RPO pelvis. Media kontras yang digunakan sebanyak 30 ml pada uretra dan 100 ml pada vesica urinaria. Hasil radiograf mampu memperlihatkan uretra, vesica urinaria, dan lokasi penyempitan uretra pada pars posterior sehingga dapat mendukung evaluasi striktur uretra. Pemeriksaan radiografi bipolar uretrocystografi pada kasus striktur uretra dilakukan dengan pemasukan media kontras iodine water-soluble yang dicampur water steril melalui teknik retrograde dan antegrade. Pada kasus tertentu, penambahan variasi proyeksi dapat dipertimbangkan untuk mendukung evaluasi anatomi dan kelainan uretra secara lebih lengkap.