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| author | Thomas White <taw@physics.org> | 2010-02-26 17:53:44 +0100 |
|---|---|---|
| committer | Thomas White <taw@physics.org> | 2010-02-26 17:53:44 +0100 |
| commit | a34f668051317f475c64c7aad6143dda76325fd1 (patch) | |
| tree | 595a36e4395402f5b8a7d1333e81a7ebae45c199 | |
| parent | c8d022b01819c81489a9d06fe05aaccb7d057a68 (diff) | |
Separate DQE and detector gain (to make Poisson noise work)
| -rw-r--r-- | src/detector.c | 2 | ||||
| -rw-r--r-- | src/parameters-lcls.tmp | 7 |
2 files changed, 6 insertions, 3 deletions
diff --git a/src/detector.c b/src/detector.c index 7a7f5942..2a4c6d10 100644 --- a/src/detector.c +++ b/src/detector.c @@ -108,7 +108,7 @@ void record_image(struct image *image, int do_poisson) counts = (int)rounded; } - image->data[x + image->width*y] = counts; + image->data[x + image->width*y] = counts * DETECTOR_GAIN; } progress_bar(x, image->width-1, "Post-processing"); diff --git a/src/parameters-lcls.tmp b/src/parameters-lcls.tmp index 96b2bc33..50786e03 100644 --- a/src/parameters-lcls.tmp +++ b/src/parameters-lcls.tmp @@ -1,8 +1,11 @@ /* Number of photons in pulse */ #define FLUENCE (1.0e13) -/* Detector's quantum efficiency (ADU per photon, front detector) */ -#define DQE (167.0) +/* Detector's quantum efficiency */ +#define DQE (0.9) + +/* ADU per photon (front detector) */ +#define DETECTOR_GAIN (167.0) /* Radius of the water column */ #define WATER_RADIUS (3.0e-6 / 2.0) |